Symptom Duplication
- When the symptom can be duplicated, follow the self-diagnostic procedures (picture diagnosis mode) and the appropriate troubleshooting procedures.
- When the symptom does not reappear or only reappears intermittently, ask the customer about the conditions when the symptom occured.
- Try to establish if outside interference may have been the cause.
- Try to duplicate the symptom under the same conditions the customer was experiencing.
- Vibration, temperature extremes, and moisture (dew, humidity) are factors that are difficult to duplicate.